!129 tune2fs:fix one segfault problem

From: @liuzhiqiang26 
Reviewed-by: @volcanodragon 
Signed-off-by: @volcanodragon
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openeuler-ci-bot 2022-10-14 06:11:43 +00:00 committed by Gitee
commit d90d76e6af
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4 changed files with 138 additions and 1 deletions

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@ -0,0 +1,57 @@
From 66ecb6abe5d2c74191bb4bc24f3da036e5fa1213 Mon Sep 17 00:00:00 2001
From: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Date: Mon, 5 Sep 2022 19:16:03 +0800
Subject: [PATCH] tune2fs: fix tune2fs segfault when ext2fs_run_ext3_journal()
fails
When ext2fs_run_ext3_journal() fails, tune2fs cmd will occur one
segfault problem as follows.
(gdb) bt
#0 0x00007fdadad69917 in ext2fs_mmp_stop (fs=0x0) at mmp.c:405
#1 0x0000558fa5a9365a in main (argc=<optimized out>, argv=<optimized out>) at tune2fs.c:3440
misc/tune2fs.c:
main()
-> ext2fs_open2(&fs)
-> ext2fs_mmp_start
......
-> retval = ext2fs_run_ext3_journal(&fs)
-> if (retval)
// if ext2fs_run_ext3_journal fails, close and free fs.
-> ext2fs_close_free(&fs)
-> rc = 1
-> goto closefs
......
closefs:
-> if (rc)
-> ext2fs_mmp_stop(fs) // fs has been set to NULL, boom!!
-> (ext2fs_close_free(&fs) ? 1 : 0); // close and free fs
In main() of tune2fs cmd, if ext2fs_run_ext3_journal() fails,
we should set rc=1 and goto closefs tag, in which will release fs
resource.
Fix: a2292f8a5108 ("tune2fs: reset MMP state on error exit")
Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Signed-off-by: zhanchengbin <zhanchengbin1@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
misc/tune2fs.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/misc/tune2fs.c b/misc/tune2fs.c
index a7ff16de..98e38983 100644
--- a/misc/tune2fs.c
+++ b/misc/tune2fs.c
@@ -3106,8 +3106,6 @@ _("Warning: The journal is dirty. You may wish to replay the journal like:\n\n"
com_err("tune2fs", retval,
"while recovering journal.\n");
printf(_("Please run e2fsck -fy %s.\n"), argv[1]);
- if (fs)
- ext2fs_close_free(&fs);
rc = 1;
goto closefs;
}
--
2.33.0

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@ -0,0 +1,39 @@
From 77ac16dfba42e0d152b1e99359e01a933f8cc6f9 Mon Sep 17 00:00:00 2001
From: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Date: Mon, 5 Sep 2022 23:40:01 +0800
Subject: [PATCH] tune2fs: tune2fs_main() should return rc when some error,
occurs
If some error occurs, tune2fs_main() will go to closefs tag for
releasing resource, and it should return correct value (rc) instead
of 0 when ext2fs_close_free(&fs) successes.
Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Reviewed-by: Artem Blagodarenko <artem.blagodarenko@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
misc/tune2fs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/misc/tune2fs.c b/misc/tune2fs.c
index 98e38983..bed3d95b 100644
--- a/misc/tune2fs.c
+++ b/misc/tune2fs.c
@@ -3243,6 +3243,7 @@ _("Warning: The journal is dirty. You may wish to replay the journal like:\n\n"
fputs(_("Error in using clear_mmp. "
"It must be used with -f\n"),
stderr);
+ rc = 1;
goto closefs;
}
}
@@ -3447,5 +3448,5 @@ closefs:
if (feature_64bit)
convert_64bit(fs, feature_64bit);
- return (ext2fs_close_free(&fs) ? 1 : 0);
+ return (ext2fs_close_free(&fs) ? 1 : rc);
}
--
2.33.0

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@ -0,0 +1,35 @@
From 3d967e53033c85ad5d3af1a42efb2c4f7501c356 Mon Sep 17 00:00:00 2001
From: lijinlin3@huawei.com
Date: Fri, 16 Sep 2022 18:15:02 +0200
Subject: [PATCH] tune2fs: exit directly when fs freed in ext2fs_run_ext3_journal
In ext2fs_run_ext3_journal(), fs will be free and reallocate. But
reallocating by ext2fs_open() may fail in some cases, such as device
being offline at the same time. In these cases, goto closefs will
cause segfault, fix it by exiting directly.
Signed-off-by: Li Jinlin <lijinlin3@huawei.com>
---
misc/tune2fs.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/misc/tune2fs.c b/misc/tune2fs.c
index 088f87e5..ee57dc7c 100644
--- a/misc/tune2fs.c
+++ b/misc/tune2fs.c
@@ -3344,8 +3344,11 @@ _("Warning: The journal is dirty. You may wish to replay the journal like:\n\n"
com_err("tune2fs", retval,
"while recovering journal.\n");
printf(_("Please run e2fsck -fy %s.\n"), argv[1]);
- rc = 1;
- goto closefs;
+ if (fs) {
+ rc = 1;
+ goto closefs;
+ }
+ exit(1);
}
sb = fs->super;
}
--
2.23.0

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@ -1,6 +1,6 @@
Name: e2fsprogs Name: e2fsprogs
Version: 1.46.4 Version: 1.46.4
Release: 15 Release: 16
Summary: Second extended file system management tools Summary: Second extended file system management tools
License: GPLv2+ and LGPLv2 and MIT License: GPLv2+ and LGPLv2 and MIT
URL: http://e2fsprogs.sourceforge.net/ URL: http://e2fsprogs.sourceforge.net/
@ -25,6 +25,9 @@ Patch15: 0015-libext2fs-add-sanity-check-to-extent-manipulation.patch
Patch16: 0016-e2fsprogs-add-sw64.patch Patch16: 0016-e2fsprogs-add-sw64.patch
Patch17: 0017-tune2fs-do-not-change-j_tail_sequence-in-journal-sup.patch Patch17: 0017-tune2fs-do-not-change-j_tail_sequence-in-journal-sup.patch
Patch18: 0018-debugfs-teach-logdump-the-n-num_trans-option.patch Patch18: 0018-debugfs-teach-logdump-the-n-num_trans-option.patch
Patch19: 0019-tune2fs-fix-tune2fs-segfault-when-ext2fs_run_ext3_jo.patch
Patch20: 0020-tune2fs-tune2fs_main-should-return-rc-when-some-erro.patch
Patch21: 0021-tune2fs-exit-directly-when-fs-freed-in-ext2fs_run_ext3_journal.patch
BuildRequires: gcc pkgconfig texinfo BuildRequires: gcc pkgconfig texinfo
@ -166,6 +169,9 @@ exit 0
%{_mandir}/man8/* %{_mandir}/man8/*
%changelog %changelog
* Fri Oct 14 2022 Zhiqiang Liu <liuzhiqiang26@huawei.com> - 1.46.4-16
- tune2fs: fix segfault problem
* Fri Sep 23 2022 zhanchengbin <zhanchengbin1@huawei.com> - 1.46.4-15 * Fri Sep 23 2022 zhanchengbin <zhanchengbin1@huawei.com> - 1.46.4-15
- test: fix ACL-printing tests from community - test: fix ACL-printing tests from community